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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 19, Iss. 3 — Mar. 1, 2002
  • pp: 567–571

Optimum divergence angle of a Gaussian beam wave in the presence of random jitter in free-space laser communication systems

Morio Toyoshima, Takashi Jono, Keizo Nakagawa, and Akio Yamamoto  »View Author Affiliations


JOSA A, Vol. 19, Issue 3, pp. 567-571 (2002)
http://dx.doi.org/10.1364/JOSAA.19.000567


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Abstract

The average bit error rate (BER) of optical communication systems is considered in the presence of random angular jitter. First, the received power and the BER in the absence of jitter are reviewed. Then the average BER is obtained in the presence of circularly symmetric, normally distributed jitter by using the probability density function of the optical signal. By minimizing the power penalty for average BER, the optimum ratio of the divergence angle of the laser beam to the random angular jitter at the desired BER is obtained. An analytic approximation of the optimum ratio is derived as a function of the desired average BER. The results can be used for designing the link budget of optical communication and tracking channels in the presence of jitter.

© 2002 Optical Society of America

OCIS Codes
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(030.6600) Coherence and statistical optics : Statistical optics
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4510) Fiber optics and optical communications : Optical communications
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(220.4830) Optical design and fabrication : Systems design

History
Original Manuscript: May 2, 2001
Revised Manuscript: July 30, 2001
Manuscript Accepted: August 24, 2001
Published: March 1, 2002

Citation
Morio Toyoshima, Takashi Jono, Keizo Nakagawa, and Akio Yamamoto, "Optimum divergence angle of a Gaussian beam wave in the presence of random jitter in free-space laser communication systems," J. Opt. Soc. Am. A 19, 567-571 (2002)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-19-3-567

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